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Old 09-16-2009, 11:05 AM   #1
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Saltwater assassin snail?

I'm new to saltwater aquariums (inherited a couple of established tanks). I just added some margherita snails (no clue if I'm spelling that right) to my 30 gallon aquarium to help with algea control.

Within 2 minutes of adding the margarita snails, what I originally thought was one of my small hermit crabs attached itself to one of the snails and killed it.

The next day, I was able to see that this was actually a snail in a shell similar in appearance to my hermit crab shells. The snail has a hook-like structure that it uses to reach in the shell of the other snail. It also can apparently drill a hole in the shell because I find this on the shell when I separate them. (I'm currently down 2 more margherita snails).

Have any of you ever heard / experienced a saltwater assassin snail? This snail does not look at all like the freshwater snail.


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Old 09-16-2009, 11:55 AM   #2
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Do you have a picture of the snail? Look up whelks snail and see if that could be the snail you have that is causing the problems.

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Old 09-16-2009, 07:28 PM   #3
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After looking closer, this doesn't really look like a snail, but a small conch? There is no tube, but a meaty hook. I have made a decision to remove as I caught it just after killing my last hermit crab and making a move on another snail!
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Old 09-16-2009, 08:56 PM   #4
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psyco snail attack wow...now i've heard it all
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Old 09-17-2009, 10:21 AM   #5
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thats mad crazy! you got a mini jason snail in your tank! good thing you got it out
I;m so deep that if water tried to listen then the rivers would sink...knowledge is power, get ya weight up!
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Old 09-18-2009, 07:13 PM   #6
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It may be a "whelk".

Age is relative, you are only as old as you act....of course, this works in reverse....

Questions loved, heeded advice greatly appreciated!

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assassin, assassin snail, salt, saltwater, snail

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